Stainless steel ball valve convenient to adjust

Abstract

The utility model discloses a stainless steel ball valve convenient to adjust, belongs to the technical field of valve body structures, and is used for providing a stainless steel ball valve with stable adjusting ability, the stainless steel ball valve comprises a pair of shells, a ball core is restrained between the two shells through two semi-hoop rings, and sealing rings are arranged between the ball core and the shells and between the shells and the semi-hoop rings. The end, away from the semi-shroud ring, of the shell is a pipe connecting end, the ball core is provided with a channel penetrating through the surface, a sinking groove is formed in the top of the ball core, a lower through hole communicated with the channel is formed in the position, in the sinking groove, of the ball core, a linkage piece is embedded in the sinking groove, a valve shaft is clamped to the linkage piece, and a handle is arranged at the position, extending to the position above the semi-shroud ring, of the valve shaft. According to the ball valve, the adjusting part capable of spirally ascending and descending is designed in the valve shaft, so that the flow conductivity of the ball valve can be adjusted when the ball valve is in a completely-opened state, the stability is high after adjustment, the adjusting flexibility of the ball valve is improved, and a valve body specially responsible for adjusting flow can be omitted in pipeline configuration.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve body structure, and particularly relates to a stainless steel ball valve convenient to adjust. BACKGROUND

[0002] The stainless steel ball valve is one of the commonly used control valve bodies in the pipeline system. Since the valve core structure of the ball surface is more relaxed during state conversion, the ball valve can usually only maintain two states of complete closing and complete opening, and other states between the two states are unstable, so the ball valve has poor flow rate adjustment capability, and usually needs to be used together with other valve bodies, which increases the pipeline blocking position, so that the valve body is more troublesome to install and replace. SUMMARY

[0003] The purpose of the present application is to provide a stainless steel ball valve with stable adjustment capability.

[0004] To achieve the above purpose, the present application provides a stainless steel ball valve convenient to adjust: a pair of housings are provided, and a ball core is constrained between the two housings by two half hoops, sealing rings are arranged between the ball core and the housings and between the housings and the half hoops, the end of the housing away from the half hoop is a pipe joint end, the ball core has a through surface channel, a sink is formed in the top of the ball core, a lower through hole communicating with the channel is formed in the sink, a linkage is embedded in the sink, a valve shaft is clamped on the linkage, a handle is arranged at the position of the valve shaft extending above the half hoop, and an adjusting member is threadedly connected in the valve shaft, the lower end of the adjusting member extends into the channel, and the flow cross section of the channel is changed, so that the maximum flow capacity of the ball valve is changed.

[0005] As a preferred, the linkage comprises a clamping block matched with the sink, the top surface of the clamping block has a connection ring, the bottom surface of the clamping block is provided with an upper through hole communicating with the connection ring, and the outer side surface of the connection ring is provided with a slot adapted to be inserted with the valve shaft, the valve shaft is provided with a screw hole penetrating the upper and lower end surfaces, the adjusting member comprises a screw rod threadedly matched with the screw hole, the lower end of the screw rod has a flow resistance rod adapted to pass through the upper and lower through holes, and the upper end of the screw rod is fixedly connected with a handle, so that the valve shaft is more labor-saving when rotated.

[0006] As a preferred, the top ends of the two half hoops are formed with an axle hole adapted to pass through the valve shaft to constitute a rotating pair, the two half hoops are provided with a ring groove below the axle hole, the lower end of the valve shaft has a limiting ring adapted to cooperate with the ring groove to constitute a rotating pair and inhibit the movement of the valve shaft.

[0007] As a kind of preferred, the lower end of the valve shaft also has an insertion plate, suitable for being inserted with the insertion slot;The outer side of the valve shaft is also provided with a clamping groove, one end of the handle has a sleeve ring, the inner wall of the sleeve ring has a clamping plate, the clamping plate is suitable for being clamped with the clamping groove when the sleeve ring is sleeved on the valve shaft, so that the torque of the handle is transmitted to the valve shaft.

[0008] As a kind of preferred, the ball core is also provided with a let-out hole in the inner wall of the channel, suitable for being inserted with the flow blocking rod, which can improve the stability of the end of the flow blocking rod.

[0009] As a kind of preferred, the shell further comprises a ball cover integrated with the pipe joint end, the ball core is located in two ball covers, the inner wall of each ball cover is provided with a coaxial inner wall sealing groove, suitable for setting a spherical sealing ring, the spherical sealing ring is in close contact with the outer surface of the ball core, forming a water-proof sealing surface.

[0010] As a kind of preferred, the end face of the ball cover away from the pipe joint end is provided with an outer sealing groove, the end face of the half hoop ring is provided with an inner sealing groove, and a cylindrical sealing ring is arranged between the outer sealing groove and the inner sealing groove;Two ball covers are fixedly connected with two half hoop rings through connecting pieces, facilitating disassembly and assembly operation.

[0011] As a kind of preferred, the end of the ball cover is expanded outward to form a ring and is provided with a connecting hole, the half hoop ring is provided with a connecting through hole penetrating through the two end faces, and the connecting piece comprises a bolt and a nut, the bolt is matched with the nut after penetrating through the two connecting holes and the connecting through hole located between the two connecting holes, ensuring the connection strength and stability.

[0012] Compared with the prior art, the beneficial effects of the present application are:

[0013] (1) By designing the adjusting member that can be spirally lifted in the valve shaft, the flow guiding capacity of the ball valve can be adjusted when it is in the fully open state, and the stability after adjustment is high, which improves the adjustment flexibility of the ball valve, and one valve body specially responsible for adjusting flow can be saved in pipeline configuration, reducing the complexity of pipeline installation.

[0014] (2) By reasonably designing the matching structure, the half hoop ring opened in half is located between the ball shells, so that the ball valve has good water resistance, stability and installation speed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the stainless steel ball valve convenient to adjust.

[0016] Figure 2 It is a three-dimensional structure sectional view of the stainless steel ball valve convenient to adjust.

[0017] Figure 3 The three-dimensional structure of the adjusting part of the stainless steel ball valve.

[0018] Figure 4 The three-dimensional structure of the adjusting part of the stainless steel ball valve.

[0019] Figure 5 The three-dimensional structure of the adjusting part of the stainless steel ball valve. Figure 4 The three-dimensional structure after removing a card.

[0020] Figure 6 The three-dimensional structure of the adjusting part of the stainless steel ball valve.

[0021] Figure 7 The three-dimensional structure of the adjusting part of the stainless steel ball valve.

[0022] Figure 8 The three-dimensional structure of the adjusting part of the stainless steel ball valve.

[0023] Figure 9 The first three-dimensional structure of the valve shaft of the stainless steel ball valve.

[0024] Figure 10 The second three-dimensional structure of the valve shaft of the stainless steel ball valve.

[0025] Figure 11 The three-dimensional structure of the ball core of the stainless steel ball valve.

[0026] Figure 12 The three-dimensional structure of the half hoop ring of the stainless steel ball valve.

[0027] Figure 13 The three-dimensional structure of the shell of the stainless steel ball valve.

[0028] Figure 14 The three-dimensional structure of the spherical sealing ring of the stainless steel ball valve.

[0029] In the figure: 1, shell; 101, ball cover; 102, pipe joint end; 103, outer sealing groove; 104, connecting hole; 105, inner wall sealing groove; 2, half hoop ring; 201, inner sealing groove; 202, connecting through hole; 203, shaft hole; 204, ring groove; 3, handle; 301, sleeve ring; 302, clamping plate; 4, valve shaft; 401, limiting ring; 402, plug plate; 403, screw hole; 404, clamping groove; 5, adjusting piece; 501, flow resistance rod; 502, handle; 503, screw rod; 6, linkage; 601, clamping block; 602, upper through hole; 603, adapter ring; 604, insertion slot; 7, connecting piece; 701, bolt; 702, nut; 8, sealing ring; 801, cylindrical sealing ring; 802, spherical sealing ring; 9, ball core; 901, channel; 902, clearance hole; 903, sink; 904, lower through hole. DETAILED DESCRIPTION

[0030] Hereinafter, the present application will be further described in conjunction with specific embodiments, and it should be noted that the following described embodiments or technical features can be combined in any manner to form new embodiments without conflict.

[0031] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0033] The terms "include" and "have" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] As Figures 1-14The shown stainless steel ball valve for easy adjustment comprises a pair of housings 1 made of stainless steel, a ball core 9 constrained between the two housings 1 by two half hoops 2, the half hoops 2 being semicircular, rubber sealing rings 8 provided between the ball core 9 and the housings 1 and between the housings 1 and the half hoops 2 for ensuring the sealing of the connecting surfaces, the end of the housing 1 away from the half hoop 2 being a pipe joint end 102 for connecting with the end of a pipeline, the housing 1 further comprising a ball cover 101 integral with the pipe joint end 102, the ball cover 101 being semispherical, the two ball covers 101 forming a complete spherical shape, the ball core 9 being located in the two ball covers 101, the inner wall of each ball cover 101 being provided with a coaxial inner wall sealing groove 105 for arranging a spherical sealing ring 802, the spherical sealing ring 802 being in close contact with the outer surface of the ball core 9 to form an annular sealing surface, the end surface of the ball cover 101 away from the pipe joint end 102 being provided with an outer sealing groove 103, and the end surface of the half hoop 2 being provided with a semicircular inner sealing groove 201, the inner sealing grooves 201 of the two half hoops 2 forming a complete inner sealing groove 201, the complete inner sealing groove 201 being circular and having the same shape and size as the outer sealing groove 103, a cylindrical sealing ring 801 being arranged between the outer sealing groove 103 and the inner sealing groove 201 to also form an annular sealing surface.

[0035] The two ball covers 101 are fixedly connected with the two half hoops 2 by connecting members 7, the end of the ball cover 101 away from the pipe joint end 102 actually expanding outward to form a ring and being provided with a plurality of uniformly arranged connecting holes 104, the half hoop 2 being provided with connecting through holes 202 penetrating the two end surfaces, the number and position of the connecting through holes 202 being matched with those of the connecting holes 104, the connecting member 7 being a detachable bolt 701 and nut 702, the bolt 701 penetrating the two connecting holes 104 and the connecting through hole 202 between the two connecting holes 104 and cooperating with the nut 702 to realize screwing and fixing.

[0036] The ball core 9 has a channel 901 penetrating the surface, which can connect two pipe joints 102, when the two ends of the channel 901 are completely blocked, the two pipe joints 102 are disconnected, the top of the ball core 9 is provided with a sunken groove 903, the sunken groove 903 is embedded with a linkage 6, the linkage 6 is connected with a valve shaft 4, the top of the two half hoops 2 is provided with a shaft hole 203, which is used for the valve shaft 4 to pass through to form a rotating pair, the two half hoops 2 are provided with a ring groove 204 below the shaft hole 203, the lower end of the valve shaft 4 is provided with a limiting ring 401, which is used for cooperating with the ring groove 204 to form a rotating pair, so as to inhibit the up and down movement of the valve shaft 4, the specific structure of the linkage 6 includes a clamping block 601 matched with the sunken groove 903, the top surface of the clamping block 601 is provided with a connecting ring 603, the bottom surface of the clamping block 601 is provided with an upper through hole 602 connected with the connecting ring 603, the outer side surface of the connecting ring 603 is provided with an insertion slot 604, the number of the insertion slot 604 is at least two, and the two insertion slots 604 are symmetrical about the axis of the connecting ring 603, which is used for being inserted with the valve shaft 4, in fact, the lower end of the valve shaft 4 is also provided with an insertion plate 402, the number and position of the insertion plate 402 correspond to the insertion slot 604, which is used for being inserted with the insertion slot 604, so that the valve shaft 4 can drive the ball core 9 to rotate through the linkage 6, and the linkage 6 can also constrain the ball core 9 to rotate only along the vertical axis.

[0037] The part of the valve shaft 4 extending above the half hoop 2 is provided with a handle 3, so that it is more labor-saving to rotate the valve shaft 4, and the outer side surface of the valve shaft 4 is also provided with a clamping groove 404, one end of the handle 3 is provided with a sleeve ring 301, the inner wall of the sleeve ring 301 is provided with a clamping plate 302, the clamping plate 302 is suitable for being clamped with the clamping groove 404 when the sleeve ring 301 is sleeved on the valve shaft 4, so that the stable transmission of the rotating torque can be realized.

[0038] The valve shaft 4 is also screwed with an adjusting part 5, the lower end of the adjusting part 5 extends into the channel 901, which is used for changing the flow cross section of the channel 901, so as to change the maximum flow velocity of the ball valve, the valve shaft 4 is provided with a screw hole 403 penetrating the upper and lower end surfaces, the adjusting part 5 includes a screw rod 503 screwed with the screw hole 403, the lower end of the screw rod 503 is provided with a flow resistance rod 501, which just penetrates the upper through hole 602 and the lower through hole 904, the inner wall of the ball core 9 in the channel 901 is also provided with a gap hole 902, which can be inserted with the flow resistance rod 501, when the flow resistance rod 501 extends to the longest, the stability of the lower end of the flow resistance rod 501 can be ensured, the upper end of the screw rod 503 is fixedly connected with a handle 502, the size of the handle 502 is obviously larger than that of the screw rod 503, which is also a labor-saving lever, so that the operation of rotating the screw rod 503 is more relaxed.

[0039] Working principle: when the channel 901 and pipe end 102 alignment, the ball valve is in full open state, at this time the rotating handle 502, the resistance flow rod 501 will be due to the screw and the lifting cloud from, thus changing the central position of the channel 901 inside the communication section, due to the bucket effect, the ball valve flow capacity, by the internal narrowest place limit, therefore the resistance flow rod 501 insertion depth is different, the maximum flow capacity of the ball valve is also different, which makes the ball valve regulating flexibility has been effectively improved.

[0040] The above describes the basic principles of the present application, the main features and advantages of the present application. The skilled in the art should understand that the present application is not limited to the above examples, the above examples and described in the specification is only the principle of the present application, without departing from the spirit and scope of the present application under the premise of various changes and improvements of the present application, these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A stainless steel ball valve that is easy to adjust, characterized in that: The device includes a pair of housings (1), with a ball core (9) constrained between the two housings (1) by two semi-hoops (2). Sealing rings (8) are provided between the ball core (9) and the housings (1), and between the housings (1) and the semi-hoops (2). The end of the housing (1) away from the semi-hoops (2) is a pipe connection end (102). The ball core (9) has a channel (901) penetrating its surface. A groove (903) is formed at the top of the ball core (9). The settling tank (903) has a lower through hole (904) that connects to the channel (901). A linkage (6) is embedded in the settling tank (903). A valve shaft (4) is snapped onto the linkage (6). A handle (3) is provided on the part of the valve shaft (4) that extends above the semi-hoop ring (2). An adjusting member (5) is also threaded into the valve shaft (4). The lower end of the adjusting member (5) extends into the channel (901) and is suitable for changing the flow cross section of the channel (901).

2. The easily adjustable stainless steel ball valve as described in claim 1, characterized in that: The linkage (6) includes a locking block (601) that fits into the sink (903). The top surface of the locking block (601) has a connecting ring (603). The bottom surface of the locking block (601) has an upper through hole (602) that connects to the connecting ring (603). The outer side of the connecting ring (603) has a slot (604) that is suitable for insertion into the valve shaft (4). The valve shaft (4) has a threaded hole (403) that passes through the upper and lower end faces. The adjusting component (5) includes a screw (503) that is threaded into the threaded hole (403). The lower end of the screw (503) has a flow-blocking rod (501) that is suitable for passing through the upper through hole (602) and the lower through hole (904). The upper end of the screw (503) is fixedly connected to a handle (502).

3. The easily adjustable stainless steel ball valve as described in claim 2, characterized in that: A shaft hole (203) is formed between the top ends of the two half-rings (2), which is suitable for the valve shaft (4) to pass through to form a rotating pair. An annular groove (204) is provided below the shaft hole (203) of the two half-rings (2). The lower end of the valve shaft (4) has a limiting ring (401), which is suitable for cooperating with the annular groove (204) to form a rotating pair.

4. The easily adjustable stainless steel ball valve as described in claim 3, characterized in that: The lower end of the valve shaft (4) also has a insert plate (402) suitable for insertion into the slot (604); the outer side of the valve shaft (4) is also provided with a slot (404); one end of the handle (3) has a collar (301); the inner wall of the collar (301) has a retaining plate (302); the retaining plate (302) is suitable for engaging with the slot (404) when the collar (301) is fitted over the valve shaft (4).

5. The easily adjustable stainless steel ball valve as described in claim 2, characterized in that: The ball core (9) also has a clearance hole (902) on the inner wall of the channel (901), which is suitable for insertion with the flow-blocking rod (501).

6. The easily adjustable stainless steel ball valve as described in any one of claims 1 to 5, characterized in that: The housing (1) also includes a spherical cover (101) integral with the pipe end (102). The spherical core (9) is located inside the two spherical covers (101). Each spherical cover (101) has a coaxial inner wall sealing groove (105) on its inner wall, which is suitable for setting a spherical sealing ring (802). The spherical sealing ring (802) is in close contact with the outer surface of the spherical core (9).

7. The easily adjustable stainless steel ball valve as described in claim 6, characterized in that: The end face of the ball cover (101) facing away from the pipe end (102) is provided with an outer sealing groove (103), and the end face of the half hoop (2) is provided with an inner sealing groove (201). A cylindrical sealing ring (801) is provided between the outer sealing groove (103) and the inner sealing groove (201). The two ball covers (101) are fixedly connected to the two half hoops (2) through connectors (7).

8. The easily adjustable stainless steel ball valve as described in claim 7, characterized in that: The end of the spherical cover (101) expands outward to form a ring and has a connecting hole (104). The semi-hoop ring (2) has a connecting through hole (202) that passes through both ends. The connector (7) includes a bolt (701) and a nut (702). The bolt (701) passes through the two connecting holes (104) and the connecting through hole (202) located between the two connecting holes (104) and then engages with the nut (702).

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